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Carla/source/backend/plugin/CarlaPluginDSSI.cpp

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  1. /*

  2.  * Carla DSSI Plugin

  3.  * Copyright (C) 2011-2014 Filipe Coelho <falktx@falktx.com>

  4.  *

  5.  * This program is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU General Public License as

  7.  * published by the Free Software Foundation; either version 2 of

  8.  * the License, or any later version.

  9.  *

  10.  * This program is distributed in the hope that it will be useful,

  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  13.  * GNU General Public License for more details.

  14.  *

  15.  * For a full copy of the GNU General Public License see the doc/GPL.txt file.

  16.  */

  17. 

  18. // TODO: set fUsesCustomData and latency index before init finishes

  19. // TODO: common laterncy code

  20. 

  21. #include "CarlaPluginInternal.hpp"

  22. #include "CarlaEngine.hpp"

  23. 

  24. #include "CarlaDssiUtils.hpp"

  25. #include "CarlaMathUtils.hpp"

  26. #include "CarlaThread.hpp"

  27. 

  28. using juce::String;

  29. using juce::StringArray;

  30. 

  31. CARLA_BACKEND_START_NAMESPACE

  32. 

  33. class CarlaPluginDSSI;

  34. 

  35. // -------------------------------------------------------------------

  36. // Fallback data

  37. 

  38. static const CustomData kCustomDataFallback = { nullptr, nullptr, nullptr };

  39. 

  40. // -------------------------------------------------------------------

  41. 

  42. class CarlaThreadDSSIUI : public CarlaThread

  43. {

  44. public:

  45.     CarlaThreadDSSIUI(CarlaEngine* const engine, CarlaPluginDSSI* const plugin, ScopedPointer<ChildProcess>& childProcess) noexcept

  46.         : CarlaThread("CarlaThreadDSSIUI"),

  47.           kEngine(engine),

  48.           kPlugin(plugin),

  49.           fBinary(),

  50.           fLabel(),

  51.           fProcess(childProcess),

  52.           leakDetector_CarlaThreadDSSIUI() {}

  53. 

  54.     void setData(const char* const binary, const char* const label) noexcept

  55.     {

  56.         CARLA_SAFE_ASSERT_RETURN(binary != nullptr && binary[0] != '\0',);

  57.         CARLA_SAFE_ASSERT_RETURN(label != nullptr /*&& label[0] != '\0'*/,);

  58.         CARLA_SAFE_ASSERT(! isThreadRunning());

  59. 

  60.         fBinary = binary;

  61.         fLabel  = label;

  62. 

  63.         if (fLabel.isEmpty())

  64.             fLabel = "\"\"";

  65.     }

  66. 

  67.     uintptr_t getPid() const

  68.     {

  69.         CARLA_SAFE_ASSERT_RETURN(fProcess != nullptr, 0);

  70. 

  71.         return (uintptr_t)fProcess->getPID();

  72.     }

  73. 

  74.     void run();

  75. 

  76. private:

  77.     CarlaEngine*     const kEngine;

  78.     CarlaPluginDSSI* const kPlugin;

  79. 

  80.     CarlaString fBinary;

  81.     CarlaString fLabel;

  82. 

  83.     ScopedPointer<ChildProcess>& fProcess;

  84. 

  85.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaThreadDSSIUI)

  86. };

  87. 

  88. // -----------------------------------------------------

  89. 

  90. class CarlaPluginDSSI : public CarlaPlugin

  91. {

  92. public:

  93.     CarlaPluginDSSI(CarlaEngine* const engine, const uint id) noexcept

  94.         : CarlaPlugin(engine, id),

  95.           fHandle(nullptr),

  96.           fHandle2(nullptr),

  97.           fDescriptor(nullptr),

  98.           fDssiDescriptor(nullptr),

  99.           fUsesCustomData(false),

  100.           fUiFilename(nullptr),

  101.           fAudioInBuffers(nullptr),

  102.           fAudioOutBuffers(nullptr),

  103.           fParamBuffers(nullptr),

  104.           fLatencyChanged(false),

  105.           fLatencyIndex(-1),

  106.           fThreadUI(engine, this, pData->childProcess),

  107.           leakDetector_CarlaPluginDSSI()

  108.     {

  109.         carla_debug("CarlaPluginDSSI::CarlaPluginDSSI(%p, %i)", engine, id);

  110.     }

  111. 

  112.     ~CarlaPluginDSSI() noexcept override

  113.     {

  114.         carla_debug("CarlaPluginDSSI::~CarlaPluginDSSI()");

  115. 

  116.         // close UI

  117.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  118.         {

  119.             showCustomUI(false);

  120. 

  121.             fThreadUI.stopThread(static_cast<int>(pData->engine->getOptions().uiBridgesTimeout * 2));

  122.         }

  123. 

  124.         pData->singleMutex.lock();

  125.         pData->masterMutex.lock();

  126. 

  127.         if (pData->client != nullptr && pData->client->isActive())

  128.             pData->client->deactivate();

  129. 

  130.         if (pData->active)

  131.         {

  132.             deactivate();

  133.             pData->active = false;

  134.         }

  135. 

  136.         if (fDescriptor != nullptr)

  137.         {

  138.             if (pData->name != nullptr && fDssiDescriptor != nullptr && fDssiDescriptor->run_synth == nullptr && fDssiDescriptor->run_multiple_synths != nullptr)

  139.                 removeUniqueMultiSynth(fDescriptor->Label);

  140. 

  141.             if (fDescriptor->cleanup != nullptr)

  142.             {

  143.                 if (fHandle != nullptr)

  144.                 {

  145.                     try {

  146.                         fDescriptor->cleanup(fHandle);

  147.                     } CARLA_SAFE_EXCEPTION("DSSI cleanup");

  148.                 }

  149. 

  150.                 if (fHandle2 != nullptr)

  151.                 {

  152.                     try {

  153.                         fDescriptor->cleanup(fHandle2);

  154.                     } CARLA_SAFE_EXCEPTION("DSSI cleanup #2");

  155.                 }

  156.             }

  157. 

  158.             fHandle  = nullptr;

  159.             fHandle2 = nullptr;

  160.             fDescriptor = nullptr;

  161.             fDssiDescriptor = nullptr;

  162.         }

  163. 

  164.         if (fUiFilename != nullptr)

  165.         {

  166.             delete[] fUiFilename;

  167.             fUiFilename = nullptr;

  168.         }

  169. 

  170.         clearBuffers();

  171.     }

  172. 

  173.     // -------------------------------------------------------------------

  174.     // Information (base)

  175. 

  176.     PluginType getType() const noexcept override

  177.     {

  178.         return PLUGIN_DSSI;

  179.     }

  180. 

  181.     PluginCategory getCategory() const noexcept override

  182.     {

  183.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr, PLUGIN_CATEGORY_NONE);

  184. 

  185.         if (pData->audioIn.count == 0 && pData->audioOut.count > 0 && (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr))

  186.             return PLUGIN_CATEGORY_SYNTH;

  187. 

  188.         return CarlaPlugin::getCategory();

  189.     }

  190. 

  191.     int64_t getUniqueId() const noexcept override

  192.     {

  193.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, 0);

  194. 

  195.         return static_cast<int64_t>(fDescriptor->UniqueID);

  196.     }

  197. 

  198.     // -------------------------------------------------------------------

  199.     // Information (count)

  200. 

  201.     // nothing

  202. 

  203.     // -------------------------------------------------------------------

  204.     // Information (current data)

  205. 

  206.     std::size_t getChunkData(void** const dataPtr) noexcept override

  207.     {

  208.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData, 0);

  209.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS, 0);

  210.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr, 0);

  211.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor->get_custom_data != nullptr, 0);

  212.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr, 0);

  213.         CARLA_SAFE_ASSERT_RETURN(fHandle2 == nullptr, 0);

  214.         CARLA_SAFE_ASSERT_RETURN(dataPtr != nullptr, 0);

  215. 

  216.         *dataPtr = nullptr;

  217. 

  218.         int ret = 0;

  219.         ulong dataSize = 0;

  220. 

  221.         try {

  222.             ret = fDssiDescriptor->get_custom_data(fHandle, dataPtr, &dataSize);

  223.         } CARLA_SAFE_EXCEPTION_RETURN("CarlaPluginDSSI::getChunkData", 0);

  224. 

  225.         return (ret != 0) ? dataSize : 0;

  226.     }

  227. 

  228.     // -------------------------------------------------------------------

  229.     // Information (per-plugin data)

  230. 

  231.     uint getOptionsAvailable() const noexcept override

  232.     {

  233.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr, 0x0);

  234. 

  235. #ifdef __USE_GNU

  236.         const bool isDssiVst(strcasestr(pData->filename, "dssi-vst") != nullptr);

  237. #else

  238.         const bool isDssiVst(std::strstr(pData->filename, "dssi-vst") != nullptr);

  239. #endif

  240. 

  241.         uint options = 0x0;

  242. 

  243.         if (fDssiDescriptor->get_program != nullptr && fDssiDescriptor->select_program != nullptr)

  244.             options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  245. 

  246.         if (! isDssiVst)

  247.         {

  248.             if (fLatencyIndex == -1)

  249.                 options |= PLUGIN_OPTION_FIXED_BUFFERS;

  250. 

  251.             if (pData->engine->getProccessMode() != ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  252.             {

  253.                 if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  254.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  255.                 else if (pData->audioIn.count <= 1 && pData->audioOut.count <= 1 && (pData->audioIn.count != 0 || pData->audioOut.count != 0))

  256.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  257.             }

  258.         }

  259. 

  260.         if (fUsesCustomData)

  261.             options |= PLUGIN_OPTION_USE_CHUNKS;

  262. 

  263.         if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  264.         {

  265.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  266.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  267.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  268.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  269.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  270.         }

  271. 

  272.         return options;

  273.     }

  274. 

  275.     float getParameterValue(const uint32_t parameterId) const noexcept override

  276.     {

  277.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr, 0.0f);

  278.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0.0f);

  279. 

  280.         return fParamBuffers[parameterId];

  281.     }

  282. 

  283.     void getLabel(char* const strBuf) const noexcept override

  284.     {

  285.         CARLA_SAFE_ASSERT_RETURN(fDescriptor        != nullptr, nullStrBuf(strBuf));

  286.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->Label != nullptr, nullStrBuf(strBuf));

  287. 

  288.         std::strncpy(strBuf, fDescriptor->Label, STR_MAX);

  289.     }

  290. 

  291.     void getMaker(char* const strBuf) const noexcept override

  292.     {

  293.         CARLA_SAFE_ASSERT_RETURN(fDescriptor        != nullptr, nullStrBuf(strBuf));

  294.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->Maker != nullptr, nullStrBuf(strBuf));

  295. 

  296.         std::strncpy(strBuf, fDescriptor->Maker, STR_MAX);

  297.     }

  298. 

  299.     void getCopyright(char* const strBuf) const noexcept override

  300.     {

  301.         CARLA_SAFE_ASSERT_RETURN(fDescriptor            != nullptr, nullStrBuf(strBuf));

  302.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->Copyright != nullptr, nullStrBuf(strBuf));

  303. 

  304.         std::strncpy(strBuf, fDescriptor->Copyright, STR_MAX);

  305.     }

  306. 

  307.     void getRealName(char* const strBuf) const noexcept override

  308.     {

  309.         CARLA_SAFE_ASSERT_RETURN(fDescriptor       != nullptr, nullStrBuf(strBuf));

  310.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->Name != nullptr, nullStrBuf(strBuf));

  311. 

  312.         std::strncpy(strBuf, fDescriptor->Name, STR_MAX);

  313.     }

  314. 

  315.     void getParameterName(const uint32_t parameterId, char* const strBuf) const noexcept override

  316.     {

  317.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,           nullStrBuf(strBuf));

  318.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf));

  319. 

  320.         const int32_t rindex(pData->param.data[parameterId].rindex);

  321. 

  322.         CARLA_SAFE_ASSERT_RETURN(rindex < static_cast<int32_t>(fDescriptor->PortCount), nullStrBuf(strBuf));

  323.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames[rindex] != nullptr,             nullStrBuf(strBuf));

  324. 

  325.         if (getSeparatedParameterNameOrUnit(fDescriptor->PortNames[rindex], strBuf, true))

  326.             return;

  327. 

  328.         std::strncpy(strBuf, fDescriptor->PortNames[rindex], STR_MAX);

  329.     }

  330. 

  331.     void getParameterUnit(const uint32_t parameterId, char* const strBuf) const noexcept override

  332.     {

  333.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, nullStrBuf(strBuf));

  334. 

  335.         const int32_t rindex(pData->param.data[parameterId].rindex);

  336. 

  337.         CARLA_SAFE_ASSERT_RETURN(rindex < static_cast<int32_t>(fDescriptor->PortCount), nullStrBuf(strBuf));

  338. 

  339.         if (getSeparatedParameterNameOrUnit(fDescriptor->PortNames[rindex], strBuf, false))

  340.             return;

  341. 

  342.         nullStrBuf(strBuf);

  343.     }

  344. 

  345.     // -------------------------------------------------------------------

  346.     // Set data (state)

  347. 

  348.     // nothing

  349. 

  350.     // -------------------------------------------------------------------

  351.     // Set data (internal stuff)

  352. 

  353.     // nothing

  354. 

  355.     // -------------------------------------------------------------------

  356.     // Set data (plugin-specific stuff)

  357. 

  358.     void setParameterValue(const uint32_t parameterId, const float value, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  359.     {

  360.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

  361.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  362. 

  363.         const float fixedValue(pData->param.getFixedValue(parameterId, value));

  364.         fParamBuffers[parameterId] = fixedValue;

  365. 

  366.         CarlaPlugin::setParameterValue(parameterId, fixedValue, sendGui, sendOsc, sendCallback);

  367.     }

  368. 

  369.     void setCustomData(const char* const type, const char* const key, const char* const value, const bool sendGui) override

  370.     {

  371.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  372.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  373.         CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

  374.         CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0',);

  375.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

  376.         carla_debug("CarlaPluginDSSI::setCustomData(%s, %s, %s, %s)", type, key, value, bool2str(sendGui));

  377. 

  378.         if (std::strcmp(type, CUSTOM_DATA_TYPE_STRING) != 0)

  379.             return carla_stderr2("CarlaPluginDSSI::setCustomData(\"%s\", \"%s\", \"%s\", %s) - type is not string", type, key, value, bool2str(sendGui));

  380. 

  381.         if (fDssiDescriptor->configure != nullptr)

  382.         {

  383.             try {

  384.                 fDssiDescriptor->configure(fHandle, key, value);

  385.             } catch(...) {}

  386. 

  387.             if (fHandle2 != nullptr)

  388.             {

  389.                 try {

  390.                     fDssiDescriptor->configure(fHandle2, key, value);

  391.                 } catch(...) {}

  392.             }

  393.         }

  394. 

  395.         if (sendGui && pData->oscData.target != nullptr)

  396.             osc_send_configure(pData->oscData, key, value);

  397. 

  398.         if (std::strcmp(key, "reloadprograms") == 0 || std::strcmp(key, "load") == 0 || std::strncmp(key, "patches", 7) == 0)

  399.         {

  400.             const ScopedSingleProcessLocker spl(this, true);

  401.             reloadPrograms(false);

  402.         }

  403. 

  404.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  405.     }

  406. 

  407.     void setChunkData(const void* const data, const std::size_t dataSize) override

  408.     {

  409.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData,);

  410.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS,);

  411.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  412.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor->set_custom_data != nullptr,);

  413.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  414.         CARLA_SAFE_ASSERT_RETURN(fHandle2 == nullptr,);

  415.         CARLA_SAFE_ASSERT_RETURN(data != nullptr,);

  416.         CARLA_SAFE_ASSERT_RETURN(dataSize > 0,);

  417. 

  418.         {

  419.             const ScopedSingleProcessLocker spl(this, true);

  420. 

  421.             try {

  422.                 fDssiDescriptor->set_custom_data(fHandle, const_cast<void*>(data), static_cast<ulong>(dataSize));

  423.             } CARLA_SAFE_EXCEPTION("CarlaPluginDSSI::setChunkData");

  424.         }

  425. 

  426. #ifdef BUILD_BRIDGE

  427.         const bool sendOsc(false);

  428. #else

  429.         const bool sendOsc(pData->engine->isOscControlRegistered());

  430. #endif

  431.         pData->updateParameterValues(this, sendOsc, true, false);

  432.     }

  433. 

  434.     void setMidiProgram(const int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback) noexcept override

  435.     {

  436.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  437.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor->select_program != nullptr,);

  438.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  439.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->midiprog.count),);

  440. 

  441.         if (index >= 0)

  442.         {

  443.             const uint32_t bank(pData->midiprog.data[index].bank);

  444.             const uint32_t program(pData->midiprog.data[index].program);

  445. 

  446.             const ScopedSingleProcessLocker spl(this, (sendGui || sendOsc || sendCallback));

  447. 

  448.             try {

  449.                 fDssiDescriptor->select_program(fHandle, bank, program);

  450.             } catch(...) {}

  451. 

  452.             if (fHandle2 != nullptr)

  453.             {

  454.                 try {

  455.                     fDssiDescriptor->select_program(fHandle2, bank, program);

  456.                 } catch(...) {}

  457.             }

  458.         }

  459. 

  460.         CarlaPlugin::setMidiProgram(index, sendGui, sendOsc, sendCallback);

  461.     }

  462. 

  463.     // -------------------------------------------------------------------

  464.     // Set ui stuff

  465. 

  466.     void showCustomUI(const bool yesNo) override

  467.     {

  468.         if (yesNo)

  469.         {

  470.             pData->oscData.clear();

  471.             fThreadUI.startThread();

  472.         }

  473.         else

  474.         {

  475.             pData->transientTryCounter = 0;

  476. 

  477.             if (pData->oscData.target != nullptr)

  478.             {

  479.                 osc_send_hide(pData->oscData);

  480.                 osc_send_quit(pData->oscData);

  481.                 pData->oscData.clear();

  482.             }

  483. 

  484.             fThreadUI.stopThread(static_cast<int>(pData->engine->getOptions().uiBridgesTimeout * 2));

  485.         }

  486.     }

  487. 

  488.     void idle() override

  489.     {

  490.         if (fLatencyChanged && fLatencyIndex != -1)

  491.         {

  492.             fLatencyChanged = false;

  493. 

  494.             const int32_t latency(static_cast<int32_t>(fParamBuffers[fLatencyIndex]));

  495. 

  496.             if (latency >= 0)

  497.             {

  498.                 const uint32_t ulatency(static_cast<uint32_t>(latency));

  499. 

  500.                 if (pData->latency != ulatency)

  501.                 {

  502.                     carla_stdout("latency changed to %i", latency);

  503. 

  504.                     const ScopedSingleProcessLocker sspl(this, true);

  505. 

  506.                     pData->latency = ulatency;

  507.                     pData->client->setLatency(ulatency);

  508. #ifndef BUILD_BRIDGE

  509.                     pData->recreateLatencyBuffers();

  510. #endif

  511.                 }

  512.             }

  513.             else

  514.                 carla_safe_assert_int("latency >= 0", __FILE__, __LINE__, latency);

  515.         }

  516. 

  517.         CarlaPlugin::idle();

  518.     }

  519. 

  520.     // -------------------------------------------------------------------

  521.     // Plugin state

  522. 

  523.     void reload() override

  524.     {

  525.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  526.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  527.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  528.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  529.         carla_debug("CarlaPluginDSSI::reload() - start");

  530. 

  531.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  532. 

  533.         // Safely disable plugin for reload

  534.         const ScopedDisabler sd(this);

  535. 

  536.         if (pData->active)

  537.             deactivate();

  538. 

  539.         clearBuffers();

  540. 

  541.         const float sampleRate(static_cast<float>(pData->engine->getSampleRate()));

  542.         const uint32_t portCount(getSafePortCount());

  543. 

  544.         uint32_t aIns, aOuts, mIns, params;

  545.         aIns = aOuts = mIns = params = 0;

  546. 

  547.         bool forcedStereoIn, forcedStereoOut;

  548.         forcedStereoIn = forcedStereoOut = false;

  549. 

  550.         bool needsCtrlIn, needsCtrlOut;

  551.         needsCtrlIn = needsCtrlOut = false;

  552. 

  553.         for (uint32_t i=0; i < portCount; ++i)

  554.         {

  555.             const LADSPA_PortDescriptor portType(fDescriptor->PortDescriptors[i]);

  556. 

  557.             if (LADSPA_IS_PORT_AUDIO(portType))

  558.             {

  559.                 if (LADSPA_IS_PORT_INPUT(portType))

  560.                     aIns += 1;

  561.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  562.                     aOuts += 1;

  563.             }

  564.             else if (LADSPA_IS_PORT_CONTROL(portType))

  565.                 params += 1;

  566.         }

  567. 

  568.         if ((pData->options & PLUGIN_OPTION_FORCE_STEREO) != 0 && (aIns == 1 || aOuts == 1))

  569.         {

  570.             if (fHandle2 == nullptr)

  571.             {

  572.                 try {

  573.                     fHandle2 = fDescriptor->instantiate(fDescriptor, static_cast<ulong>(sampleRate));

  574.                 } CARLA_SAFE_EXCEPTION("DSSI instantiate #2");

  575.             }

  576. 

  577.             if (fHandle2 != nullptr)

  578.             {

  579.                 if (aIns == 1)

  580.                 {

  581.                     aIns = 2;

  582.                     forcedStereoIn = true;

  583.                 }

  584. 

  585.                 if (aOuts == 1)

  586.                 {

  587.                     aOuts = 2;

  588.                     forcedStereoOut = true;

  589.                 }

  590.             }

  591.         }

  592. 

  593.         if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  594.         {

  595.             mIns = 1;

  596.             needsCtrlIn = true;

  597.         }

  598. 

  599.         if (aIns > 0)

  600.         {

  601.             pData->audioIn.createNew(aIns);

  602.             fAudioInBuffers = new float*[aIns];

  603. 

  604.             for (uint32_t i=0; i < aIns; ++i)

  605.                 fAudioInBuffers[i] = nullptr;

  606.         }

  607. 

  608.         if (aOuts > 0)

  609.         {

  610.             pData->audioOut.createNew(aOuts);

  611.             fAudioOutBuffers = new float*[aOuts];

  612.             needsCtrlIn = true;

  613. 

  614.             for (uint32_t i=0; i < aOuts; ++i)

  615.                 fAudioOutBuffers[i] = nullptr;

  616.         }

  617. 

  618.         if (params > 0)

  619.         {

  620.             pData->param.createNew(params, true);

  621. 

  622.             fParamBuffers = new float[params];

  623.             FloatVectorOperations::clear(fParamBuffers, static_cast<int>(params));

  624.         }

  625. 

  626.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  627.         CarlaString portName;

  628. 

  629.         for (uint32_t i=0, iAudioIn=0, iAudioOut=0, iCtrl=0; i < portCount; ++i)

  630.         {

  631.             const LADSPA_PortDescriptor portType      = fDescriptor->PortDescriptors[i];

  632.             const LADSPA_PortRangeHint portRangeHints = fDescriptor->PortRangeHints[i];

  633. 

  634.             if (LADSPA_IS_PORT_AUDIO(portType))

  635.             {

  636.                 portName.clear();

  637. 

  638.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  639.                 {

  640.                     portName  = pData->name;

  641.                     portName += ":";

  642.                 }

  643. 

  644.                 if (fDescriptor->PortNames[i] != nullptr && fDescriptor->PortNames[i][0] != '\0')

  645.                 {

  646.                     portName += fDescriptor->PortNames[i];

  647.                 }

  648.                 else

  649.                 {

  650.                     if (LADSPA_IS_PORT_INPUT(portType))

  651.                     {

  652.                         if (aIns > 1)

  653.                         {

  654.                             portName += "audio-in_";

  655.                             portName += CarlaString(iAudioIn+1);

  656.                         }

  657.                         else

  658.                             portName += "audio-in";

  659.                     }

  660.                     else

  661.                     {

  662.                         if (aOuts > 1)

  663.                         {

  664.                             portName += "audio-out_";

  665.                             portName += CarlaString(iAudioOut+1);

  666.                         }

  667.                         else

  668.                             portName += "audio-out";

  669.                     }

  670.                 }

  671. 

  672.                 portName.truncate(portNameSize);

  673. 

  674.                 if (LADSPA_IS_PORT_INPUT(portType))

  675.                 {

  676.                     const uint32_t j = iAudioIn++;

  677.                     pData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  678.                     pData->audioIn.ports[j].rindex = i;

  679. 

  680.                     if (forcedStereoIn)

  681.                     {

  682.                         portName += "_2";

  683.                         pData->audioIn.ports[1].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, true);

  684.                         pData->audioIn.ports[1].rindex = i;

  685.                     }

  686.                 }

  687.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  688.                 {

  689.                     const uint32_t j = iAudioOut++;

  690.                     pData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false);

  691.                     pData->audioOut.ports[j].rindex = i;

  692. 

  693.                     if (forcedStereoOut)

  694.                     {

  695.                         portName += "_2";

  696.                         pData->audioOut.ports[1].port   = (CarlaEngineAudioPort*)pData->client->addPort(kEnginePortTypeAudio, portName, false);

  697.                         pData->audioOut.ports[1].rindex = i;

  698.                     }

  699.                 }

  700.                 else

  701.                     carla_stderr2("WARNING - Got a broken Port (Audio, but not input or output)");

  702.             }

  703.             else if (LADSPA_IS_PORT_CONTROL(portType))

  704.             {

  705.                 const uint32_t j = iCtrl++;

  706.                 pData->param.data[j].index  = static_cast<int32_t>(j);

  707.                 pData->param.data[j].rindex = static_cast<int32_t>(i);

  708. 

  709.                 const char* const paramName(fDescriptor->PortNames[i] != nullptr ? fDescriptor->PortNames[i] : "unknown");

  710. 

  711.                 float min, max, def, step, stepSmall, stepLarge;

  712. 

  713.                 // min value

  714.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  715.                     min = portRangeHints.LowerBound;

  716.                 else

  717.                     min = 0.0f;

  718. 

  719.                 // max value

  720.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  721.                     max = portRangeHints.UpperBound;

  722.                 else

  723.                     max = 1.0f;

  724. 

  725.                 if (min > max)

  726.                 {

  727.                     carla_stderr2("WARNING - Broken plugin parameter '%s': min > max", paramName);

  728.                     min = max - 0.1f;

  729.                 }

  730.                 else if (carla_compareFloats(min, max))

  731.                 {

  732.                     carla_stderr2("WARNING - Broken plugin parameter '%s': min == max", paramName);

  733.                     max = min + 0.1f;

  734.                 }

  735. 

  736.                 // default value

  737.                 def = get_default_ladspa_port_value(portRangeHints.HintDescriptor, min, max);

  738. 

  739.                 if (def < min)

  740.                     def = min;

  741.                 else if (def > max)

  742.                     def = max;

  743. 

  744.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  745.                 {

  746.                     min *= sampleRate;

  747.                     max *= sampleRate;

  748.                     def *= sampleRate;

  749.                     pData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE;

  750.                 }

  751. 

  752.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  753.                 {

  754.                     step = max - min;

  755.                     stepSmall = step;

  756.                     stepLarge = step;

  757.                     pData->param.data[j].hints |= PARAMETER_IS_BOOLEAN;

  758.                 }

  759.                 else if (LADSPA_IS_HINT_INTEGER(portRangeHints.HintDescriptor))

  760.                 {

  761.                     step = 1.0f;

  762.                     stepSmall = 1.0f;

  763.                     stepLarge = 10.0f;

  764.                     pData->param.data[j].hints |= PARAMETER_IS_INTEGER;

  765.                 }

  766.                 else

  767.                 {

  768.                     const float range = max - min;

  769.                     step = range/100.0f;

  770.                     stepSmall = range/1000.0f;

  771.                     stepLarge = range/10.0f;

  772.                 }

  773. 

  774.                 if (LADSPA_IS_PORT_INPUT(portType))

  775.                 {

  776.                     pData->param.data[j].type   = PARAMETER_INPUT;

  777.                     pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  778.                     pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  779.                     needsCtrlIn = true;

  780. 

  781.                     // MIDI CC value

  782.                     if (fDssiDescriptor->get_midi_controller_for_port != nullptr)

  783.                     {

  784.                         int controller = fDssiDescriptor->get_midi_controller_for_port(fHandle, i);

  785.                         if (DSSI_CONTROLLER_IS_SET(controller) && DSSI_IS_CC(controller))

  786.                         {

  787.                             int16_t cc = DSSI_CC_NUMBER(controller);

  788.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

  789.                                 pData->param.data[j].midiCC = cc;

  790.                         }

  791.                     }

  792.                 }

  793.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  794.                 {

  795.                     pData->param.data[j].type = PARAMETER_OUTPUT;

  796. 

  797.                     if (std::strcmp(paramName, "latency") == 0 || std::strcmp(paramName, "_latency") == 0)

  798.                     {

  799.                         min = 0.0f;

  800.                         max = sampleRate;

  801.                         def = 0.0f;

  802.                         step = 1.0f;

  803.                         stepSmall = 1.0f;

  804.                         stepLarge = 1.0f;

  805.                         pData->param.special[j] = PARAMETER_SPECIAL_LATENCY;

  806.                         CARLA_SAFE_ASSERT(fLatencyIndex == -1);

  807.                         fLatencyIndex = static_cast<int32_t>(j);

  808.                     }

  809.                     else

  810.                     {

  811.                         pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  812.                         pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  813.                         needsCtrlOut = true;

  814.                     }

  815.                 }

  816.                 else

  817.                 {

  818.                     carla_stderr2("WARNING - Got a broken Port (Control, but not input or output)");

  819.                 }

  820. 

  821.                 // extra parameter hints

  822.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

  823.                     pData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  824. 

  825.                 pData->param.ranges[j].min = min;

  826.                 pData->param.ranges[j].max = max;

  827.                 pData->param.ranges[j].def = def;

  828.                 pData->param.ranges[j].step = step;

  829.                 pData->param.ranges[j].stepSmall = stepSmall;

  830.                 pData->param.ranges[j].stepLarge = stepLarge;

  831. 

  832.                 // Start parameters in their default values

  833.                 fParamBuffers[j] = def;

  834. 

  835.                 try {

  836.                     fDescriptor->connect_port(fHandle, i, &fParamBuffers[j]);

  837.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port parameter");

  838. 

  839.                 if (fHandle2 != nullptr)

  840.                 {

  841.                     try {

  842.                         fDescriptor->connect_port(fHandle2, i, &fParamBuffers[j]);

  843.                     } CARLA_SAFE_EXCEPTION("DSSI connect_port parameter #2");

  844.                 }

  845.             }

  846.             else

  847.             {

  848.                 // Not Audio or Control

  849.                 carla_stderr2("ERROR - Got a broken Port (neither Audio or Control)");

  850. 

  851.                 try {

  852.                     fDescriptor->connect_port(fHandle, i, nullptr);

  853.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port null");

  854. 

  855.                 if (fHandle2 != nullptr)

  856.                 {

  857.                     try {

  858.                         fDescriptor->connect_port(fHandle2, i, nullptr);

  859.                     } CARLA_SAFE_EXCEPTION("DSSI connect_port null #2");

  860.                 }

  861.             }

  862.         }

  863. 

  864.         if (needsCtrlIn)

  865.         {

  866.             portName.clear();

  867. 

  868.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  869.             {

  870.                 portName  = pData->name;

  871.                 portName += ":";

  872.             }

  873. 

  874.             portName += "events-in";

  875.             portName.truncate(portNameSize);

  876. 

  877.             pData->event.portIn = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, true);

  878.         }

  879. 

  880.         if (needsCtrlOut)

  881.         {

  882.             portName.clear();

  883. 

  884.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  885.             {

  886.                 portName  = pData->name;

  887.                 portName += ":";

  888.             }

  889. 

  890.             portName += "events-out";

  891.             portName.truncate(portNameSize);

  892. 

  893.             pData->event.portOut = (CarlaEngineEventPort*)pData->client->addPort(kEnginePortTypeEvent, portName, false);

  894.         }

  895. 

  896.         if (forcedStereoIn || forcedStereoOut)

  897.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  898.         else

  899.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  900. 

  901.         // plugin hints

  902.         pData->hints = 0x0;

  903. 

  904.         if (LADSPA_IS_HARD_RT_CAPABLE(fDescriptor->Properties))

  905.             pData->hints |= PLUGIN_IS_RTSAFE;

  906. 

  907.         if (fUiFilename != nullptr)

  908.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  909. 

  910. #ifndef BUILD_BRIDGE

  911.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  912.             pData->hints |= PLUGIN_CAN_DRYWET;

  913. 

  914.         if (aOuts > 0)

  915.             pData->hints |= PLUGIN_CAN_VOLUME;

  916. 

  917.         if (aOuts >= 2 && aOuts % 2 == 0)

  918.             pData->hints |= PLUGIN_CAN_BALANCE;

  919. #endif

  920. 

  921.         // extra plugin hints

  922.         pData->extraHints = 0x0;

  923. 

  924.         if (mIns > 0)

  925.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  926. 

  927.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0))

  928.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  929. 

  930.         // check latency

  931.         if (fLatencyIndex >= 0)

  932.         {

  933.             // we need to pre-run the plugin so it can update its latency control-port

  934. 

  935.             float tmpIn [(aIns > 0)  ? aIns  : 1][2];

  936.             float tmpOut[(aOuts > 0) ? aOuts : 1][2];

  937. 

  938.             for (uint32_t j=0; j < aIns; ++j)

  939.             {

  940.                 tmpIn[j][0] = 0.0f;

  941.                 tmpIn[j][1] = 0.0f;

  942. 

  943.                 try {

  944.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[j].rindex, tmpIn[j]);

  945.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port latency input");

  946.             }

  947. 

  948.             for (uint32_t j=0; j < aOuts; ++j)

  949.             {

  950.                 tmpOut[j][0] = 0.0f;

  951.                 tmpOut[j][1] = 0.0f;

  952. 

  953.                 try {

  954.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[j].rindex, tmpOut[j]);

  955.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port latency output");

  956.             }

  957. 

  958.             if (fDescriptor->activate != nullptr)

  959.             {

  960.                 try {

  961.                     fDescriptor->activate(fHandle);

  962.                 } CARLA_SAFE_EXCEPTION("DSSI latency activate");

  963.             }

  964. 

  965.             try {

  966.                 fDescriptor->run(fHandle, 2);

  967.             } CARLA_SAFE_EXCEPTION("DSSI latency run");

  968. 

  969.             if (fDescriptor->deactivate != nullptr)

  970.             {

  971.                 try {

  972.                     fDescriptor->deactivate(fHandle);

  973.                 } CARLA_SAFE_EXCEPTION("DSSI latency deactivate");

  974.             }

  975. 

  976.             const int32_t latency(static_cast<int32_t>(fParamBuffers[fLatencyIndex]));

  977. 

  978.             if (latency >= 0)

  979.             {

  980.                 const uint32_t ulatency(static_cast<uint32_t>(latency));

  981. 

  982.                 if (pData->latency != ulatency)

  983.                 {

  984.                     carla_stdout("latency = %i", latency);

  985. 

  986.                     pData->latency = ulatency;

  987.                     pData->client->setLatency(ulatency);

  988. #ifndef BUILD_BRIDGE

  989.                     pData->recreateLatencyBuffers();

  990. #endif

  991.                 }

  992.             }

  993.             else

  994.                 carla_safe_assert_int("latency >= 0", __FILE__, __LINE__, latency);

  995. 

  996.             fLatencyChanged = false;

  997.         }

  998. 

  999.         bufferSizeChanged(pData->engine->getBufferSize());

  1000.         reloadPrograms(true);

  1001. 

  1002.         if (pData->active)

  1003.             activate();

  1004. 

  1005.         carla_debug("CarlaPluginDSSI::reload() - end");

  1006.     }

  1007. 

  1008.     void reloadPrograms(const bool doInit) override

  1009.     {

  1010.         carla_debug("CarlaPluginDSSI::reloadPrograms(%s)", bool2str(doInit));

  1011.         const uint32_t oldCount = pData->midiprog.count;

  1012.         const int32_t  current  = pData->midiprog.current;

  1013. 

  1014.         // Delete old programs

  1015.         pData->midiprog.clear();

  1016. 

  1017.         // Query new programs

  1018.         uint32_t newCount = 0;

  1019.         if (fDssiDescriptor->get_program != nullptr && fDssiDescriptor->select_program != nullptr)

  1020.         {

  1021.             for (; fDssiDescriptor->get_program(fHandle, newCount) != nullptr;)

  1022.                 ++newCount;

  1023.         }

  1024. 

  1025.         if (newCount > 0)

  1026.         {

  1027.             pData->midiprog.createNew(newCount);

  1028. 

  1029.             // Update data

  1030.             for (uint32_t i=0; i < newCount; ++i)

  1031.             {

  1032.                 const DSSI_Program_Descriptor* const pdesc(fDssiDescriptor->get_program(fHandle, i));

  1033.                 CARLA_SAFE_ASSERT_CONTINUE(pdesc != nullptr);

  1034.                 CARLA_SAFE_ASSERT(pdesc->Name != nullptr);

  1035. 

  1036.                 pData->midiprog.data[i].bank    = static_cast<uint32_t>(pdesc->Bank);

  1037.                 pData->midiprog.data[i].program = static_cast<uint32_t>(pdesc->Program);

  1038.                 pData->midiprog.data[i].name    = carla_strdup(pdesc->Name);

  1039.             }

  1040.         }

  1041. 

  1042. #ifndef BUILD_BRIDGE

  1043.         // Update OSC Names

  1044.         if (pData->engine->isOscControlRegistered())

  1045.         {

  1046.             pData->engine->oscSend_control_set_midi_program_count(pData->id, newCount);

  1047. 

  1048.             for (uint32_t i=0; i < newCount; ++i)

  1049.                 pData->engine->oscSend_control_set_midi_program_data(pData->id, i, pData->midiprog.data[i].bank, pData->midiprog.data[i].program, pData->midiprog.data[i].name);

  1050.         }

  1051. #endif

  1052. 

  1053.         if (doInit)

  1054.         {

  1055.             if (newCount > 0)

  1056.                 setMidiProgram(0, false, false, false);

  1057.         }

  1058.         else

  1059.         {

  1060.             // Check if current program is invalid

  1061.             bool programChanged = false;

  1062. 

  1063.             if (newCount == oldCount+1)

  1064.             {

  1065.                 // one midi program added, probably created by user

  1066.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  1067.                 programChanged = true;

  1068.             }

  1069.             else if (current < 0 && newCount > 0)

  1070.             {

  1071.                 // programs exist now, but not before

  1072.                 pData->midiprog.current = 0;

  1073.                 programChanged = true;

  1074.             }

  1075.             else if (current >= 0 && newCount == 0)

  1076.             {

  1077.                 // programs existed before, but not anymore

  1078.                 pData->midiprog.current = -1;

  1079.                 programChanged = true;

  1080.             }

  1081.             else if (current >= static_cast<int32_t>(newCount))

  1082.             {

  1083.                 // current midi program > count

  1084.                 pData->midiprog.current = 0;

  1085.                 programChanged = true;

  1086.             }

  1087.             else

  1088.             {

  1089.                 // no change

  1090.                 pData->midiprog.current = current;

  1091.             }

  1092. 

  1093.             if (programChanged)

  1094.                 setMidiProgram(pData->midiprog.current, true, true, true);

  1095. 

  1096.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  1097.         }

  1098.     }

  1099. 

  1100.     // -------------------------------------------------------------------

  1101.     // Plugin processing

  1102. 

  1103.     void activate() noexcept override

  1104.     {

  1105.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1106.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1107. 

  1108.         if (fDescriptor->activate != nullptr)

  1109.         {

  1110.             try {

  1111.                 fDescriptor->activate(fHandle);

  1112.             } CARLA_SAFE_EXCEPTION("DSSI activate");

  1113. 

  1114.             if (fHandle2 != nullptr)

  1115.             {

  1116.                 try {

  1117.                     fDescriptor->activate(fHandle2);

  1118.                 } CARLA_SAFE_EXCEPTION("DSSI activate #2");

  1119.             }

  1120.         }

  1121.     }

  1122. 

  1123.     void deactivate() noexcept override

  1124.     {

  1125.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  1126.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  1127. 

  1128.         if (fDescriptor->deactivate != nullptr)

  1129.         {

  1130.             try {

  1131.                 fDescriptor->deactivate(fHandle);

  1132.             } CARLA_SAFE_EXCEPTION("DSSI deactivate");

  1133. 

  1134.             if (fHandle2 != nullptr)

  1135.             {

  1136.                 try {

  1137.                     fDescriptor->deactivate(fHandle2);

  1138.                 } CARLA_SAFE_EXCEPTION("DSSI deactivate #2");

  1139.             }

  1140.         }

  1141.     }

  1142. 

  1143.     void process(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames) override

  1144.     {

  1145.         // --------------------------------------------------------------------------------------------------------

  1146.         // Check if active

  1147. 

  1148.         if (! pData->active)

  1149.         {

  1150.             // disable any output sound

  1151.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1152.                 FloatVectorOperations::clear(audioOut[i], static_cast<int>(frames));

  1153.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1154.                 FloatVectorOperations::clear(cvOut[i], static_cast<int>(frames));

  1155.             return;

  1156.         }

  1157. 

  1158.         ulong midiEventCount = 0;

  1159.         carla_zeroStruct<snd_seq_event_t>(fMidiEvents, kPluginMaxMidiEvents);

  1160. 

  1161.         // --------------------------------------------------------------------------------------------------------

  1162.         // Check if needs reset

  1163. 

  1164.         if (pData->needsReset)

  1165.         {

  1166.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1167.             {

  1168.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  1169. 

  1170.                 for (uchar i=0, k=MAX_MIDI_CHANNELS; i < MAX_MIDI_CHANNELS; ++i)

  1171.                 {

  1172.                     fMidiEvents[i].type = SND_SEQ_EVENT_CONTROLLER;

  1173.                     fMidiEvents[i].data.control.channel = i;

  1174.                     fMidiEvents[i].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1175. 

  1176.                     fMidiEvents[k+i].type = SND_SEQ_EVENT_CONTROLLER;

  1177.                     fMidiEvents[k+i].data.control.channel = i;

  1178.                     fMidiEvents[k+i].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1179.                 }

  1180.             }

  1181.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1182.             {

  1183.                 midiEventCount = MAX_MIDI_NOTE;

  1184. 

  1185.                 for (uchar i=0; i < MAX_MIDI_NOTE; ++i)

  1186.                 {

  1187.                     fMidiEvents[i].type = SND_SEQ_EVENT_NOTEOFF;

  1188.                     fMidiEvents[i].data.note.channel = static_cast<uchar>(pData->ctrlChannel);

  1189.                     fMidiEvents[i].data.note.note    = i;

  1190.                 }

  1191.             }

  1192. 

  1193. #ifndef BUILD_BRIDGE

  1194.             if (pData->latency > 0)

  1195.             {

  1196.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1197.                     FloatVectorOperations::clear(pData->latencyBuffers[i], static_cast<int>(pData->latency));

  1198.             }

  1199. #endif

  1200. 

  1201.             pData->needsReset = false;

  1202.         }

  1203. 

  1204.         // --------------------------------------------------------------------------------------------------------

  1205.         // Event Input and Processing

  1206. 

  1207.         if (pData->event.portIn != nullptr)

  1208.         {

  1209.             // ----------------------------------------------------------------------------------------------------

  1210.             // MIDI Input (External)

  1211. 

  1212.             if (pData->extNotes.mutex.tryLock())

  1213.             {

  1214.                 ExternalMidiNote note = { 0, 0, 0 };

  1215. 

  1216.                 for (; midiEventCount < kPluginMaxMidiEvents && ! pData->extNotes.data.isEmpty();)

  1217.                 {

  1218.                     note = pData->extNotes.data.getFirst(note, true);

  1219. 

  1220.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1221. 

  1222.                     snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1223. 

  1224.                     seqEvent.type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1225.                     seqEvent.data.note.channel  = static_cast<uchar>(note.channel);

  1226.                     seqEvent.data.note.note     = note.note;

  1227.                     seqEvent.data.note.velocity = note.velo;

  1228.                 }

  1229. 

  1230.                 pData->extNotes.mutex.unlock();

  1231. 

  1232.             } // End of MIDI Input (External)

  1233. 

  1234.             // ----------------------------------------------------------------------------------------------------

  1235.             // Event Input (System)

  1236. 

  1237. #ifndef BUILD_BRIDGE

  1238.             bool       allNotesOffSent  = false;

  1239. #endif

  1240.             const bool isSampleAccurate = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1241. 

  1242.             uint32_t startTime  = 0;

  1243.             uint32_t timeOffset = 0;

  1244.             uint32_t nextBankId;

  1245. 

  1246.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1247.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1248.             else

  1249.                 nextBankId = 0;

  1250. 

  1251.             for (uint32_t i=0, numEvents=pData->event.portIn->getEventCount(); i < numEvents; ++i)

  1252.             {

  1253.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1254. 

  1255.                 if (event.time >= frames)

  1256.                     continue;

  1257. 

  1258.                 CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset);

  1259. 

  1260.                 if (isSampleAccurate && event.time > timeOffset)

  1261.                 {

  1262.                     if (processSingle(audioIn, audioOut, cvIn, cvOut, event.time - timeOffset, timeOffset, midiEventCount))

  1263.                     {

  1264.                         startTime  = 0;

  1265.                         timeOffset = event.time;

  1266.                         midiEventCount = 0;

  1267. 

  1268.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1269.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1270.                         else

  1271.                             nextBankId = 0;

  1272.                     }

  1273.                     else

  1274.                         startTime += timeOffset;

  1275.                 }

  1276. 

  1277.                 switch (event.type)

  1278.                 {

  1279.                 case kEngineEventTypeNull:

  1280.                     break;

  1281. 

  1282.                 case kEngineEventTypeControl: {

  1283.                     const EngineControlEvent& ctrlEvent(event.ctrl);

  1284. 

  1285.                     switch (ctrlEvent.type)

  1286.                     {

  1287.                     case kEngineControlEventTypeNull:

  1288.                         break;

  1289. 

  1290.                     case kEngineControlEventTypeParameter: {

  1291. #ifndef BUILD_BRIDGE

  1292.                         // Control backend stuff

  1293.                         if (event.channel == pData->ctrlChannel)

  1294.                         {

  1295.                             float value;

  1296. 

  1297.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1298.                             {

  1299.                                 value = ctrlEvent.value;

  1300.                                 setDryWet(value, false, false);

  1301.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1302.                                 break;

  1303.                             }

  1304. 

  1305.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1306.                             {

  1307.                                 value = ctrlEvent.value*127.0f/100.0f;

  1308.                                 setVolume(value, false, false);

  1309.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1310.                                 break;

  1311.                             }

  1312. 

  1313.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1314.                             {

  1315.                                 float left, right;

  1316.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1317. 

  1318.                                 if (value < 0.0f)

  1319.                                 {

  1320.                                     left  = -1.0f;

  1321.                                     right = (value*2.0f)+1.0f;

  1322.                                 }

  1323.                                 else if (value > 0.0f)

  1324.                                 {

  1325.                                     left  = (value*2.0f)-1.0f;

  1326.                                     right = 1.0f;

  1327.                                 }

  1328.                                 else

  1329.                                 {

  1330.                                     left  = -1.0f;

  1331.                                     right = 1.0f;

  1332.                                 }

  1333. 

  1334.                                 setBalanceLeft(left, false, false);

  1335.                                 setBalanceRight(right, false, false);

  1336.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1337.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1338.                                 break;

  1339.                             }

  1340.                         }

  1341. #endif

  1342.                         // Control plugin parameters

  1343.                         uint32_t k;

  1344.                         for (k=0; k < pData->param.count; ++k)

  1345.                         {

  1346.                             if (pData->param.data[k].midiChannel != event.channel)

  1347.                                 continue;

  1348.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1349.                                 continue;

  1350.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1351.                                 continue;

  1352.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1353.                                 continue;

  1354. 

  1355.                             float value;

  1356. 

  1357.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1358.                             {

  1359.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1360.                             }

  1361.                             else

  1362.                             {

  1363.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1364. 

  1365.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1366.                                     value = std::rint(value);

  1367.                             }

  1368. 

  1369.                             setParameterValue(k, value, false, false, false);

  1370.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1371.                             break;

  1372.                         }

  1373. 

  1374.                         // check if event is already handled

  1375.                         if (k != pData->param.count)

  1376.                             break;

  1377. 

  1378.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param < MAX_MIDI_CONTROL)

  1379.                         {

  1380.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1381.                                 continue;

  1382. 

  1383.                             snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1384. 

  1385.                             seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1386. 

  1387.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1388.                             seqEvent.data.control.channel = event.channel;

  1389.                             seqEvent.data.control.param   = ctrlEvent.param;

  1390.                             seqEvent.data.control.value   = int8_t(ctrlEvent.value*127.0f);

  1391.                         }

  1392.                         break;

  1393.                     } // case kEngineControlEventTypeParameter

  1394. 

  1395.                     case kEngineControlEventTypeMidiBank:

  1396.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1397.                             nextBankId = ctrlEvent.param;

  1398.                         break;

  1399. 

  1400.                     case kEngineControlEventTypeMidiProgram:

  1401.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1402.                         {

  1403.                             const uint32_t nextProgramId = ctrlEvent.param;

  1404. 

  1405.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1406.                             {

  1407.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1408.                                 {

  1409.                                     const int32_t index(static_cast<int32_t>(k));

  1410.                                     setMidiProgram(index, false, false, false);

  1411.                                     pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, index, 0, 0.0f);

  1412.                                     break;

  1413.                                 }

  1414.                             }

  1415.                         }

  1416.                         break;

  1417. 

  1418.                     case kEngineControlEventTypeAllSoundOff:

  1419.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1420.                         {

  1421.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1422.                                 continue;

  1423. 

  1424.                             snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1425. 

  1426.                             seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1427. 

  1428.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1429.                             seqEvent.data.control.channel = event.channel;

  1430.                             seqEvent.data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1431.                         }

  1432.                         break;

  1433. 

  1434.                     case kEngineControlEventTypeAllNotesOff:

  1435.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1436.                         {

  1437. #ifndef BUILD_BRIDGE

  1438.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1439.                             {

  1440.                                 allNotesOffSent = true;

  1441.                                 sendMidiAllNotesOffToCallback();

  1442.                             }

  1443. #endif

  1444. 

  1445.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1446.                                 continue;

  1447. 

  1448.                             snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1449. 

  1450.                             seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1451. 

  1452.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1453.                             seqEvent.data.control.channel = event.channel;

  1454.                             seqEvent.data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1455.                         }

  1456.                         break;

  1457.                     } // switch (ctrlEvent.type)

  1458.                     break;

  1459.                 } // case kEngineEventTypeControl

  1460. 

  1461.                 case kEngineEventTypeMidi: {

  1462.                     if (midiEventCount >= kPluginMaxMidiEvents)

  1463.                         continue;

  1464. 

  1465.                     const EngineMidiEvent& midiEvent(event.midi);

  1466. 

  1467.                     if (midiEvent.size > EngineMidiEvent::kDataSize)

  1468.                         continue;

  1469. 

  1470.                     uint8_t status = uint8_t(MIDI_GET_STATUS_FROM_DATA(midiEvent.data));

  1471. 

  1472.                     // Fix bad note-off (per DSSI spec)

  1473.                     if (status == MIDI_STATUS_NOTE_ON && midiEvent.data[2] == 0)

  1474.                         status = MIDI_STATUS_NOTE_OFF;

  1475. 

  1476.                     snd_seq_event_t& seqEvent(fMidiEvents[midiEventCount++]);

  1477. 

  1478.                     seqEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1479. 

  1480.                     switch (status)

  1481.                     {

  1482.                     case MIDI_STATUS_NOTE_OFF: {

  1483.                         const uint8_t note = midiEvent.data[1];

  1484. 

  1485.                         seqEvent.type = SND_SEQ_EVENT_NOTEOFF;

  1486.                         seqEvent.data.note.channel = event.channel;

  1487.                         seqEvent.data.note.note    = note;

  1488. 

  1489.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, event.channel, note, 0.0f);

  1490.                         break;

  1491.                     }

  1492. 

  1493.                     case MIDI_STATUS_NOTE_ON: {

  1494.                         const uint8_t note = midiEvent.data[1];

  1495.                         const uint8_t velo = midiEvent.data[2];

  1496. 

  1497.                         seqEvent.type = SND_SEQ_EVENT_NOTEON;

  1498.                         seqEvent.data.note.channel  = event.channel;

  1499.                         seqEvent.data.note.note     = note;

  1500.                         seqEvent.data.note.velocity = velo;

  1501. 

  1502.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, event.channel, note, velo);

  1503.                         break;

  1504.                     }

  1505. 

  1506.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1507.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1508.                         {

  1509.                             const uint8_t note     = midiEvent.data[1];

  1510.                             const uint8_t pressure = midiEvent.data[2];

  1511. 

  1512.                             seqEvent.type = SND_SEQ_EVENT_KEYPRESS;

  1513.                             seqEvent.data.note.channel  = event.channel;

  1514.                             seqEvent.data.note.note     = note;

  1515.                             seqEvent.data.note.velocity = pressure;

  1516.                         }

  1517.                         break;

  1518. 

  1519.                     case MIDI_STATUS_CONTROL_CHANGE:

  1520.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1521.                         {

  1522.                             const uint8_t control = midiEvent.data[1];

  1523.                             const uint8_t value   = midiEvent.data[2];

  1524. 

  1525.                             seqEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1526.                             seqEvent.data.control.channel = event.channel;

  1527.                             seqEvent.data.control.param   = control;

  1528.                             seqEvent.data.control.value   = value;

  1529.                         }

  1530.                         break;

  1531. 

  1532.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1533.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1534.                         {

  1535.                             const uint8_t pressure = midiEvent.data[1];

  1536. 

  1537.                             seqEvent.type = SND_SEQ_EVENT_CHANPRESS;

  1538.                             seqEvent.data.control.channel = event.channel;

  1539.                             seqEvent.data.control.value   = pressure;

  1540.                         }

  1541.                         break;

  1542. 

  1543.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1544.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1545.                         {

  1546.                             const uint8_t lsb = midiEvent.data[1];

  1547.                             const uint8_t msb = midiEvent.data[2];

  1548. 

  1549.                             seqEvent.type = SND_SEQ_EVENT_PITCHBEND;

  1550.                             seqEvent.data.control.channel = event.channel;

  1551.                             seqEvent.data.control.value   = ((msb << 7) | lsb) - 8192;

  1552.                         }

  1553.                         break;

  1554. 

  1555.                     default:

  1556.                         --midiEventCount;

  1557.                         break;

  1558.                     } // switch (status)

  1559.                 } break;

  1560.                 } // switch (event.type)

  1561.             }

  1562. 

  1563.             pData->postRtEvents.trySplice();

  1564. 

  1565.             if (frames > timeOffset)

  1566.                 processSingle(audioIn, audioOut, cvIn, cvOut, frames - timeOffset, timeOffset, midiEventCount);

  1567. 

  1568.         } // End of Event Input and Processing

  1569. 

  1570.         // --------------------------------------------------------------------------------------------------------

  1571.         // Plugin processing (no events)

  1572. 

  1573.         else

  1574.         {

  1575.             processSingle(audioIn, audioOut, cvIn, cvOut, frames, 0, midiEventCount);

  1576. 

  1577.         } // End of Plugin processing (no events)

  1578. 

  1579. #ifndef BUILD_BRIDGE

  1580.         // --------------------------------------------------------------------------------------------------------

  1581.         // Latency, save values for next callback

  1582. 

  1583.         if (fLatencyIndex != -1)

  1584.         {

  1585.             if (pData->latency != static_cast<uint32_t>(fParamBuffers[fLatencyIndex]))

  1586.             {

  1587.                 fLatencyChanged = true;

  1588.             }

  1589.             else if (pData->latency > 0)

  1590.             {

  1591.                 if (pData->latency <= frames)

  1592.                 {

  1593.                     for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1594.                         FloatVectorOperations::copy(pData->latencyBuffers[i], audioIn[i]+(frames-pData->latency), static_cast<int>(pData->latency));

  1595.                 }

  1596.                 else

  1597.                 {

  1598.                     for (uint32_t i=0, j, k; i < pData->audioIn.count; ++i)

  1599.                     {

  1600.                         for (k=0; k < pData->latency-frames; ++k)

  1601.                             pData->latencyBuffers[i][k] = pData->latencyBuffers[i][k+frames];

  1602.                         for (j=0; k < pData->latency; ++j, ++k)

  1603.                             pData->latencyBuffers[i][k] = audioIn[i][j];

  1604.                     }

  1605.                 }

  1606.             }

  1607.         }

  1608. 

  1609.         // --------------------------------------------------------------------------------------------------------

  1610.         // Control Output

  1611. 

  1612.         if (pData->event.portOut != nullptr)

  1613.         {

  1614.             uint8_t  channel;

  1615.             uint16_t param;

  1616.             float    value;

  1617. 

  1618.             for (uint32_t k=0; k < pData->param.count; ++k)

  1619.             {

  1620.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1621.                     continue;

  1622. 

  1623.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1624. 

  1625.                 if (pData->param.data[k].midiCC > 0)

  1626.                 {

  1627.                     channel = pData->param.data[k].midiChannel;

  1628.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1629.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1630.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1631.                 }

  1632.             }

  1633.         } // End of Control Output

  1634. #endif

  1635.     }

  1636. 

  1637.     bool processSingle(const float** const audioIn, float** const audioOut, const float** const cvIn, float** const cvOut, const uint32_t frames, const uint32_t timeOffset, const ulong midiEventCount)

  1638.     {

  1639.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1640. 

  1641.         if (pData->audioIn.count > 0)

  1642.         {

  1643.             CARLA_SAFE_ASSERT_RETURN(audioIn != nullptr, false);

  1644.         }

  1645.         if (pData->audioOut.count > 0)

  1646.         {

  1647.             CARLA_SAFE_ASSERT_RETURN(audioOut != nullptr, false);

  1648.         }

  1649.         if (pData->cvIn.count > 0)

  1650.         {

  1651.             CARLA_SAFE_ASSERT_RETURN(cvIn != nullptr, false);

  1652.         }

  1653.         if (pData->cvOut.count > 0)

  1654.         {

  1655.             CARLA_SAFE_ASSERT_RETURN(cvOut != nullptr, false);

  1656.         }

  1657. 

  1658.         // --------------------------------------------------------------------------------------------------------

  1659.         // Try lock, silence otherwise

  1660. 

  1661.         if (pData->engine->isOffline())

  1662.         {

  1663.             pData->singleMutex.lock();

  1664.         }

  1665.         else if (! pData->singleMutex.tryLock())

  1666.         {

  1667.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1668.             {

  1669.                 for (uint32_t k=0; k < frames; ++k)

  1670.                     audioOut[i][k+timeOffset] = 0.0f;

  1671.             }

  1672.             for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1673.             {

  1674.                 for (uint32_t k=0; k < frames; ++k)

  1675.                     cvOut[i][k+timeOffset] = 0.0f;

  1676.             }

  1677. 

  1678.             return false;

  1679.         }

  1680. 

  1681.         // --------------------------------------------------------------------------------------------------------

  1682.         // Set audio buffers

  1683. 

  1684.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1685.             FloatVectorOperations::copy(fAudioInBuffers[i], audioIn[i]+timeOffset, static_cast<int>(frames));

  1686. 

  1687.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1688.             FloatVectorOperations::clear(fAudioOutBuffers[i], static_cast<int>(frames));

  1689. 

  1690. #if 0

  1691.         // --------------------------------------------------------------------------------------------------------

  1692.         // Set CV buffers

  1693. 

  1694.         for (uint32_t i=0; i < pData->cvIn.count; ++i)

  1695.             FloatVectorOperations::copy(fCvInBuffers[i], cvIn[i]+timeOffset, static_cast<int>(frames));

  1696. 

  1697.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1698.             FloatVectorOperations::clear(fCvOutBuffers[i], static_cast<int>(frames));

  1699. #endif

  1700. 

  1701.         // --------------------------------------------------------------------------------------------------------

  1702.         // Run plugin

  1703. 

  1704.         // TODO - try catch

  1705. 

  1706.         if (fDssiDescriptor->run_synth != nullptr)

  1707.         {

  1708.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1709. 

  1710.             if (fHandle2 != nullptr)

  1711.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1712.         }

  1713.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1714.         {

  1715.             ulong instances = (fHandle2 != nullptr) ? 2 : 1;

  1716.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1717.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1718.             ulong midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1719.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1720.         }

  1721.         else

  1722.         {

  1723.             fDescriptor->run(fHandle, frames);

  1724. 

  1725.             if (fHandle2 != nullptr)

  1726.                 fDescriptor->run(fHandle2, frames);

  1727.         }

  1728. 

  1729. #ifndef BUILD_BRIDGE

  1730.         // --------------------------------------------------------------------------------------------------------

  1731.         // Post-processing (dry/wet, volume and balance)

  1732. 

  1733.         {

  1734.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && ! carla_compareFloats(pData->postProc.dryWet, 1.0f);

  1735.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && ! (carla_compareFloats(pData->postProc.balanceLeft, -1.0f) && carla_compareFloats(pData->postProc.balanceRight, 1.0f));

  1736.             const bool isMono    = (pData->audioIn.count == 1);

  1737. 

  1738.             bool isPair;

  1739.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1740. 

  1741.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1742.             {

  1743.                 // Dry/Wet

  1744.                 if (doDryWet)

  1745.                 {

  1746.                     for (uint32_t k=0; k < frames; ++k)

  1747.                     {

  1748.                         if (k < pData->latency)

  1749.                             bufValue = pData->latencyBuffers[isMono ? 0 : i][k];

  1750.                         else if (pData->latency < frames)

  1751.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k-pData->latency];

  1752.                         else

  1753.                             bufValue = fAudioInBuffers[isMono ? 0 : i][k];

  1754. 

  1755.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1756.                     }

  1757.                 }

  1758. 

  1759.                 // Balance

  1760.                 if (doBalance)

  1761.                 {

  1762.                     isPair = (i % 2 == 0);

  1763. 

  1764.                     if (isPair)

  1765.                     {

  1766.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1767.                         FloatVectorOperations::copy(oldBufLeft, fAudioOutBuffers[i], static_cast<int>(frames));

  1768.                     }

  1769. 

  1770.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1771.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1772. 

  1773.                     for (uint32_t k=0; k < frames; ++k)

  1774.                     {

  1775.                         if (isPair)

  1776.                         {

  1777.                             // left

  1778.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1779.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1780.                         }

  1781.                         else

  1782.                         {

  1783.                             // right

  1784.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1785.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1786.                         }

  1787.                     }

  1788.                 }

  1789. 

  1790.                 // Volume (and buffer copy)

  1791.                 {

  1792.                     for (uint32_t k=0; k < frames; ++k)

  1793.                         audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1794.                 }

  1795.             }

  1796. 

  1797.         } // End of Post-processing

  1798. 

  1799. #else // BUILD_BRIDGE

  1800.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1801.         {

  1802.             for (uint32_t k=0; k < frames; ++k)

  1803.                 audioOut[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1804.         }

  1805. #endif

  1806. 

  1807. #if 0

  1808.         for (uint32_t i=0; i < pData->cvOut.count; ++i)

  1809.         {

  1810.             for (uint32_t k=0; k < frames; ++k)

  1811.                 cvOut[i][k+timeOffset] = fCvOutBuffers[i][k];

  1812.         }

  1813. #endif

  1814. 

  1815.         // --------------------------------------------------------------------------------------------------------

  1816. 

  1817.         pData->singleMutex.unlock();

  1818.         return true;

  1819.     }

  1820. 

  1821.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1822.     {

  1823.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1824.         carla_debug("CarlaPluginDSSI::bufferSizeChanged(%i) - start", newBufferSize);

  1825. 

  1826.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1827.         {

  1828.             if (fAudioInBuffers[i] != nullptr)

  1829.                 delete[] fAudioInBuffers[i];

  1830.             fAudioInBuffers[i] = new float[newBufferSize];

  1831.         }

  1832. 

  1833.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1834.         {

  1835.             if (fAudioOutBuffers[i] != nullptr)

  1836.                 delete[] fAudioOutBuffers[i];

  1837.             fAudioOutBuffers[i] = new float[newBufferSize];

  1838.         }

  1839. 

  1840.         if (fHandle2 == nullptr)

  1841.         {

  1842.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1843.             {

  1844.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1845. 

  1846.                 try {

  1847.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1848.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio input");

  1849.             }

  1850. 

  1851.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1852.             {

  1853.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1854. 

  1855.                 try {

  1856.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1857.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio output");

  1858.             }

  1859.         }

  1860.         else

  1861.         {

  1862.             if (pData->audioIn.count > 0)

  1863.             {

  1864.                 CARLA_ASSERT(pData->audioIn.count == 2);

  1865.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1866.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1867. 

  1868.                 try {

  1869.                     fDescriptor->connect_port(fHandle, pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1870.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio input #1");

  1871. 

  1872.                 try {

  1873.                     fDescriptor->connect_port(fHandle2, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1874.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio input #2");

  1875.             }

  1876. 

  1877.             if (pData->audioOut.count > 0)

  1878.             {

  1879.                 CARLA_ASSERT(pData->audioOut.count == 2);

  1880.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1881.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1882. 

  1883.                 try {

  1884.                     fDescriptor->connect_port(fHandle, pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1885.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio output #1");

  1886. 

  1887.                 try {

  1888.                     fDescriptor->connect_port(fHandle2, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1889.                 } CARLA_SAFE_EXCEPTION("DSSI connect_port audio output #2");

  1890.             }

  1891.         }

  1892. 

  1893.         carla_debug("CarlaPluginDSSI::bufferSizeChanged(%i) - end", newBufferSize);

  1894.     }

  1895. 

  1896.     void sampleRateChanged(const double newSampleRate) override

  1897.     {

  1898.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1899.         carla_debug("CarlaPluginDSSI::sampleRateChanged(%g) - start", newSampleRate);

  1900. 

  1901.         // TODO

  1902.         (void)newSampleRate;

  1903. 

  1904.         carla_debug("CarlaPluginDSSI::sampleRateChanged(%g) - end", newSampleRate);

  1905.     }

  1906. 

  1907.     // -------------------------------------------------------------------

  1908.     // Plugin buffers

  1909. 

  1910.     void clearBuffers() noexcept override

  1911.     {

  1912.         carla_debug("CarlaPluginDSSI::clearBuffers() - start");

  1913. 

  1914.         if (fAudioInBuffers != nullptr)

  1915.         {

  1916.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1917.             {

  1918.                 if (fAudioInBuffers[i] != nullptr)

  1919.                 {

  1920.                     delete[] fAudioInBuffers[i];

  1921.                     fAudioInBuffers[i] = nullptr;

  1922.                 }

  1923.             }

  1924. 

  1925.             delete[] fAudioInBuffers;

  1926.             fAudioInBuffers = nullptr;

  1927.         }

  1928. 

  1929.         if (fAudioOutBuffers != nullptr)

  1930.         {

  1931.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1932.             {

  1933.                 if (fAudioOutBuffers[i] != nullptr)

  1934.                 {

  1935.                     delete[] fAudioOutBuffers[i];

  1936.                     fAudioOutBuffers[i] = nullptr;

  1937.                 }

  1938.             }

  1939. 

  1940.             delete[] fAudioOutBuffers;

  1941.             fAudioOutBuffers = nullptr;

  1942.         }

  1943. 

  1944.         if (fParamBuffers != nullptr)

  1945.         {

  1946.             delete[] fParamBuffers;

  1947.             fParamBuffers = nullptr;

  1948.         }

  1949. 

  1950.         CarlaPlugin::clearBuffers();

  1951. 

  1952.         carla_debug("CarlaPluginDSSI::clearBuffers() - end");

  1953.     }

  1954. 

  1955.     // -------------------------------------------------------------------

  1956.     // Post-poned UI Stuff

  1957. 

  1958.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1959.     {

  1960.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1961. 

  1962.         if (pData->oscData.target == nullptr)

  1963.             return;

  1964. 

  1965.         osc_send_control(pData->oscData, pData->param.data[index].rindex, value);

  1966.     }

  1967. 

  1968.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1969.     {

  1970.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1971. 

  1972.         if (pData->oscData.target == nullptr)

  1973.             return;

  1974. 

  1975.         osc_send_program(pData->oscData, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1976.     }

  1977. 

  1978.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1979.     {

  1980.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1981.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1982.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1983. 

  1984.         if (pData->oscData.target == nullptr)

  1985.             return;

  1986. 

  1987. #if 0

  1988.         uint8_t midiData[4];

  1989.         midiData[0] = 0;

  1990.         midiData[1] = uint8_t(MIDI_STATUS_NOTE_ON | (channel & MIDI_CHANNEL_BIT));

  1991.         midiData[2] = note;

  1992.         midiData[3] = velo;

  1993. 

  1994.         osc_send_midi(pData->oscData, midiData);

  1995. #endif

  1996.     }

  1997. 

  1998.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1999.     {

  2000.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  2001.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  2002. 

  2003.         if (pData->oscData.target == nullptr)

  2004.             return;

  2005. 

  2006. #if 0

  2007.         uint8_t midiData[4];

  2008.         midiData[0] = 0;

  2009.         midiData[1] = uint8_t(MIDI_STATUS_NOTE_ON | (channel & MIDI_CHANNEL_BIT));

  2010.         midiData[2] = note;

  2011.         midiData[3] = 0;

  2012. 

  2013.         osc_send_midi(pData->oscData, midiData);

  2014. #endif

  2015.     }

  2016. 

  2017.     // -------------------------------------------------------------------

  2018. 

  2019.     void* getNativeHandle() const noexcept override

  2020.     {

  2021.         return fHandle;

  2022.     }

  2023. 

  2024.     const void* getNativeDescriptor() const noexcept override

  2025.     {

  2026.         return fDssiDescriptor;

  2027.     }

  2028. 

  2029.     const void* getExtraStuff() const noexcept override

  2030.     {

  2031.         return fUiFilename;

  2032.     }

  2033. 

  2034.     // -------------------------------------------------------------------

  2035. 

  2036.     void updateOscData(const lo_address& source, const char* const url) override

  2037.     {

  2038.         // FIXME - remove debug prints later

  2039.         carla_stdout("CarlaPluginDSSI::updateOscData(%p, \"%s\")", source, url);

  2040. 

  2041.         pData->oscData.clear();

  2042. 

  2043.         const int proto = lo_address_get_protocol(source);

  2044. 

  2045.         {

  2046.             const char* host = lo_address_get_hostname(source);

  2047.             const char* port = lo_address_get_port(source);

  2048.             pData->oscData.source = lo_address_new_with_proto(proto, host, port);

  2049. 

  2050.             carla_stdout("CarlaPlugin::updateOscData() - source: host \"%s\", port \"%s\"", host, port);

  2051.         }

  2052. 

  2053.         {

  2054.             char* host = lo_url_get_hostname(url);

  2055.             char* port = lo_url_get_port(url);

  2056.             pData->oscData.path   = carla_strdup_free(lo_url_get_path(url));

  2057.             pData->oscData.target = lo_address_new_with_proto(proto, host, port);

  2058.             carla_stdout("CarlaPlugin::updateOscData() - target: host \"%s\", port \"%s\", path \"%s\"", host, port, pData->oscData.path);

  2059. 

  2060.             std::free(host);

  2061.             std::free(port);

  2062.         }

  2063. 

  2064.         osc_send_sample_rate(pData->oscData, static_cast<float>(pData->engine->getSampleRate()));

  2065. 

  2066.         for (LinkedList<CustomData>::Itenerator it = pData->custom.begin(); it.valid(); it.next())

  2067.         {

  2068.             const CustomData& customData(it.getValue(kCustomDataFallback));

  2069.             CARLA_SAFE_ASSERT_CONTINUE(customData.isValid());

  2070. 

  2071.             if (std::strcmp(customData.type, CUSTOM_DATA_TYPE_STRING) == 0)

  2072.                 osc_send_configure(pData->oscData, customData.key, customData.value);

  2073.         }

  2074. 

  2075.         if (pData->prog.current >= 0)

  2076.             osc_send_program(pData->oscData, static_cast<uint32_t>(pData->prog.current));

  2077. 

  2078.         if (pData->midiprog.current >= 0)

  2079.         {

  2080.             const MidiProgramData& curMidiProg(pData->midiprog.getCurrent());

  2081. 

  2082.             if (getType() == PLUGIN_DSSI)

  2083.                 osc_send_program(pData->oscData, curMidiProg.bank, curMidiProg.program);

  2084.             else

  2085.                 osc_send_midi_program(pData->oscData, curMidiProg.bank, curMidiProg.program);

  2086.         }

  2087. 

  2088.         for (uint32_t i=0; i < pData->param.count; ++i)

  2089.             osc_send_control(pData->oscData, pData->param.data[i].rindex, getParameterValue(i));

  2090. 

  2091.         if ((pData->hints & PLUGIN_HAS_CUSTOM_UI) != 0 && pData->engine->getOptions().frontendWinId != 0)

  2092.             pData->transientTryCounter = 1;

  2093. 

  2094.         carla_stdout("CarlaPluginDSSI::updateOscData() - done");

  2095.     }

  2096. 

  2097.     bool waitForOscGuiShow()

  2098.     {

  2099.         carla_stdout("CarlaPluginDSSI::waitForOscGuiShow()");

  2100.         uint i=0, oscUiTimeout = pData->engine->getOptions().uiBridgesTimeout;

  2101. 

  2102.         // wait for UI 'update' call

  2103.         for (; i < oscUiTimeout/100; ++i)

  2104.         {

  2105.             if (pData->oscData.target != nullptr)

  2106.             {

  2107.                 carla_stdout("CarlaPluginDSSI::waitForOscGuiShow() - got response, asking UI to show itself now");

  2108.                 osc_send_show(pData->oscData);

  2109.                 return true;

  2110.             }

  2111. 

  2112.             if (pData->childProcess != nullptr && pData->childProcess->isRunning())

  2113.                 carla_msleep(100);

  2114.             else

  2115.                 return false;

  2116.         }

  2117. 

  2118.         carla_stdout("CarlaPluginDSSI::waitForOscGuiShow() - Timeout while waiting for UI to respond (waited %u msecs)", oscUiTimeout);

  2119.         return false;

  2120.     }

  2121. 

  2122.     // -------------------------------------------------------------------

  2123. 

  2124.     bool init(const char* const filename, const char* const name, const char* const label)

  2125.     {

  2126.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  2127. 

  2128.         // ---------------------------------------------------------------

  2129.         // first checks

  2130. 

  2131.         if (pData->client != nullptr)

  2132.         {

  2133.             pData->engine->setLastError("Plugin client is already registered");

  2134.             return false;

  2135.         }

  2136. 

  2137.         if (filename == nullptr || filename[0] == '\0')

  2138.         {

  2139.             pData->engine->setLastError("null filename");

  2140.             return false;

  2141.         }

  2142. 

  2143.         if (label == nullptr || label[0] == '\0')

  2144.         {

  2145.             pData->engine->setLastError("null label");

  2146.             return false;

  2147.         }

  2148. 

  2149.         // ---------------------------------------------------------------

  2150.         // open DLL

  2151. 

  2152.         if (! pData->libOpen(filename))

  2153.         {

  2154.             pData->engine->setLastError(pData->libError(filename));

  2155.             return false;

  2156.         }

  2157. 

  2158.         // ---------------------------------------------------------------

  2159.         // get DLL main entry

  2160. 

  2161.         const DSSI_Descriptor_Function descFn = pData->libSymbol<DSSI_Descriptor_Function>("dssi_descriptor");

  2162. 

  2163.         if (descFn == nullptr)

  2164.         {

  2165.             pData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  2166.             return false;

  2167.         }

  2168. 

  2169.         // ---------------------------------------------------------------

  2170.         // get descriptor that matches label

  2171. 

  2172.         ulong i = 0;

  2173. 

  2174.         for (;;)

  2175.         {

  2176.             try {

  2177.                 fDssiDescriptor = descFn(i++);

  2178.             }

  2179.             catch(...) {

  2180.                 carla_stderr2("Caught exception when trying to get LADSPA descriptor");

  2181.                 fDescriptor     = nullptr;

  2182.                 fDssiDescriptor = nullptr;

  2183.                 break;

  2184.             }

  2185. 

  2186.             if (fDssiDescriptor == nullptr)

  2187.                 break;

  2188. 

  2189.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  2190. 

  2191.             if (fDescriptor == nullptr)

  2192.             {

  2193.                 carla_stderr2("WARNING - Missing LADSPA interface, will not use this plugin");

  2194.                 fDssiDescriptor = nullptr;

  2195.                 break;

  2196.             }

  2197.             if (fDescriptor->Label == nullptr || fDescriptor->Label[0] == '\0')

  2198.             {

  2199.                 carla_stderr2("WARNING - Got an invalid label, will not use this plugin");

  2200.                 fDescriptor     = nullptr;

  2201.                 fDssiDescriptor = nullptr;

  2202.                 break;

  2203.             }

  2204.             if (fDescriptor->run == nullptr)

  2205.             {

  2206.                 carla_stderr2("WARNING - Plugin has no run, cannot use it");

  2207.                 fDescriptor     = nullptr;

  2208.                 fDssiDescriptor = nullptr;

  2209.                 break;

  2210.             }

  2211. 

  2212.             if (std::strcmp(fDescriptor->Label, label) == 0)

  2213.                 break;

  2214.         }

  2215. 

  2216.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  2217.         {

  2218.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  2219.             return false;

  2220.         }

  2221. 

  2222.         // ---------------------------------------------------------------

  2223.         // check if uses global instance

  2224. 

  2225.         if (fDssiDescriptor->run_synth == nullptr && fDssiDescriptor->run_multiple_synths != nullptr)

  2226.         {

  2227.             if (! addUniqueMultiSynth(fDescriptor->Label))

  2228.             {

  2229.                 pData->engine->setLastError("This plugin uses a global instance and can't be used more than once safely");

  2230.                 return false;

  2231.             }

  2232.         }

  2233. 

  2234.         // ---------------------------------------------------------------

  2235.         // get info

  2236. 

  2237.         if (name != nullptr && name[0] != '\0')

  2238.             pData->name = pData->engine->getUniquePluginName(name);

  2239.         else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  2240.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  2241.         else

  2242.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  2243. 

  2244.         pData->filename = carla_strdup(filename);

  2245. 

  2246.         // ---------------------------------------------------------------

  2247.         // register client

  2248. 

  2249.         pData->client = pData->engine->addClient(this);

  2250. 

  2251.         if (pData->client == nullptr || ! pData->client->isOk())

  2252.         {

  2253.             pData->engine->setLastError("Failed to register plugin client");

  2254.             return false;

  2255.         }

  2256. 

  2257.         // ---------------------------------------------------------------

  2258.         // initialize plugin

  2259. 

  2260.         try {

  2261.             fHandle = fDescriptor->instantiate(fDescriptor, (ulong)pData->engine->getSampleRate());

  2262.         } CARLA_SAFE_EXCEPTION("DSSI instantiate");

  2263. 

  2264.         if (fHandle == nullptr)

  2265.         {

  2266.             pData->engine->setLastError("Plugin failed to initialize");

  2267.             return false;

  2268.         }

  2269. 

  2270.         // ---------------------------------------------------------------

  2271.         // check for custom data extension

  2272. 

  2273.         if (fDssiDescriptor->configure != nullptr)

  2274.         {

  2275.             if (char* const error = fDssiDescriptor->configure(fHandle, DSSI_CUSTOMDATA_EXTENSION_KEY, ""))

  2276.             {

  2277.                 if (std::strcmp(error, "true") == 0 && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  2278.                     fUsesCustomData = true;

  2279. 

  2280.                 std::free(error);

  2281.             }

  2282.         }

  2283. 

  2284.         // ---------------------------------------------------------------

  2285.         // gui stuff

  2286. 

  2287.         if (const char* const guiFilename = find_dssi_ui(filename, fDescriptor->Label))

  2288.         {

  2289.             fThreadUI.setData(guiFilename, fDescriptor->Label);

  2290.             fUiFilename = guiFilename;

  2291.         }

  2292. 

  2293.         // ---------------------------------------------------------------

  2294.         // set default options

  2295. 

  2296. #ifdef __USE_GNU

  2297.         const bool isDssiVst(strcasestr(pData->filename, "dssi-vst") != nullptr);

  2298. #else

  2299.         const bool isDssiVst(std::strstr(pData->filename, "dssi-vst") != nullptr);

  2300. #endif

  2301. 

  2302.         pData->options = 0x0;

  2303. 

  2304.         if (fLatencyIndex >= 0 || isDssiVst)

  2305.             pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  2306. 

  2307.         if (pData->engine->getOptions().forceStereo)

  2308.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  2309. 

  2310.         if (fUsesCustomData)

  2311.             pData->options |= PLUGIN_OPTION_USE_CHUNKS;

  2312. 

  2313.         if (fDssiDescriptor->get_program != nullptr && fDssiDescriptor->select_program != nullptr)

  2314.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  2315. 

  2316.         if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  2317.         {

  2318.             pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  2319.             pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  2320.             pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  2321.             pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  2322. 

  2323.             if (fDssiDescriptor->run_synth == nullptr)

  2324.                 carla_stderr("WARNING: Plugin can ONLY use run_multiple_synths!");

  2325.         }

  2326. 

  2327.         return true;

  2328.     }

  2329. 

  2330.     // -------------------------------------------------------------------

  2331. 

  2332. private:

  2333.     LADSPA_Handle fHandle;

  2334.     LADSPA_Handle fHandle2;

  2335.     const LADSPA_Descriptor* fDescriptor;

  2336.     const DSSI_Descriptor*   fDssiDescriptor;

  2337. 

  2338.     bool fUsesCustomData;

  2339.     const char* fUiFilename;

  2340. 

  2341.     float** fAudioInBuffers;

  2342.     float** fAudioOutBuffers;

  2343.     float*  fParamBuffers;

  2344. 

  2345.     bool    fLatencyChanged;

  2346.     int32_t fLatencyIndex; // -1 if invalid

  2347. 

  2348.     snd_seq_event_t fMidiEvents[kPluginMaxMidiEvents];

  2349. 

  2350.     CarlaThreadDSSIUI fThreadUI;

  2351. 

  2352.     // -------------------------------------------------------------------

  2353. 

  2354.     uint32_t getSafePortCount() const noexcept

  2355.     {

  2356.         if (fDescriptor->PortCount == 0)

  2357.             return 0;

  2358. 

  2359.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortDescriptors != nullptr, 0);

  2360.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortRangeHints != nullptr, 0);

  2361.         CARLA_SAFE_ASSERT_RETURN(fDescriptor->PortNames != nullptr, 0);

  2362. 

  2363.         return static_cast<uint32_t>(fDescriptor->PortCount);

  2364.     }

  2365. 

  2366.     bool getSeparatedParameterNameOrUnit(const char* const paramName, char* const strBuf, const bool wantName) const noexcept

  2367.     {

  2368.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, true))

  2369.             return true;

  2370.         if (_getSeparatedParameterNameOrUnitImpl(paramName, strBuf, wantName, false))

  2371.             return true;

  2372.         return false;

  2373.     }

  2374. 

  2375.     bool _getSeparatedParameterNameOrUnitImpl(const char* const paramName, char* const strBuf, const bool wantName, const bool useBracket) const noexcept

  2376.     {

  2377.         const char* const sepBracketStart(std::strstr(paramName, useBracket ? " [" : " ("));

  2378. 

  2379.         if (sepBracketStart == nullptr)

  2380.             return false;

  2381. 

  2382.         const char* const sepBracketEnd(std::strstr(sepBracketStart, useBracket ? "]" : ")"));

  2383. 

  2384.         if (sepBracketEnd == nullptr)

  2385.             return false;

  2386. 

  2387.         const size_t unitSize(static_cast<size_t>(sepBracketEnd-sepBracketStart-2));

  2388. 

  2389.         if (unitSize > 7) // very unlikely to have such big unit

  2390.             return false;

  2391. 

  2392.         const size_t sepIndex(std::strlen(paramName)-unitSize-3);

  2393. 

  2394.         // just in case

  2395.         if (sepIndex > STR_MAX)

  2396.             return false;

  2397. 

  2398.         if (wantName)

  2399.         {

  2400.             std::strncpy(strBuf, paramName, sepIndex);

  2401.             strBuf[sepIndex] = '\0';

  2402.         }

  2403.         else

  2404.         {

  2405.             std::strncpy(strBuf, paramName+(sepIndex+2), unitSize);

  2406.             strBuf[unitSize] = '\0';

  2407.         }

  2408. 

  2409.         return true;

  2410.     }

  2411. 

  2412.     // -------------------------------------------------------------------

  2413. 

  2414.     static LinkedList<const char*> sMultiSynthList;

  2415. 

  2416.     static bool addUniqueMultiSynth(const char* const label) noexcept

  2417.     {

  2418.         CARLA_SAFE_ASSERT_RETURN(label != nullptr && label[0] != '\0', false);

  2419. 

  2420.         const char* dlabel = nullptr;

  2421. 

  2422.         try {

  2423.             dlabel = carla_strdup(label);

  2424.         } catch(...) { return false; }

  2425. 

  2426.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  2427.         {

  2428.             const char* const itLabel(it.getValue());

  2429. 

  2430.             if (std::strcmp(dlabel, itLabel) == 0)

  2431.             {

  2432.                 delete[] dlabel;

  2433.                 return false;

  2434.             }

  2435.         }

  2436. 

  2437.         return sMultiSynthList.append(dlabel);

  2438.     }

  2439. 

  2440.     static void removeUniqueMultiSynth(const char* const label) noexcept

  2441.     {

  2442.         CARLA_SAFE_ASSERT_RETURN(label != nullptr && label[0] != '\0',);

  2443. 

  2444.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  2445.         {

  2446.             const char* const itLabel(it.getValue());

  2447. 

  2448.             if (std::strcmp(label, itLabel) == 0)

  2449.             {

  2450.                 sMultiSynthList.remove(it);

  2451.                 delete[] itLabel;

  2452.                 break;

  2453.             }

  2454.         }

  2455.     }

  2456. 

  2457.     // -------------------------------------------------------------------

  2458. 

  2459.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaPluginDSSI)

  2460. };

  2461. 

  2462. LinkedList<const char*> CarlaPluginDSSI::sMultiSynthList;

  2463. 

  2464. 

  2465. // -------------------------------------------------------------------------------------------------------------------

  2466. 

  2467. void CarlaThreadDSSIUI::run()

  2468. {

  2469.     if (fProcess == nullptr)

  2470.     {

  2471.         fProcess = new ChildProcess();

  2472.     }

  2473.     else if (fProcess->isRunning())

  2474.     {

  2475.         carla_stderr("CarlaThreadDSSI::run() - already running, giving up...");

  2476. 

  2477.         kEngine->callback(CarlaBackend::ENGINE_CALLBACK_UI_STATE_CHANGED, kPlugin->getId(), 0, 0, 0.0f, nullptr);

  2478.         fProcess->kill();

  2479.         fProcess = nullptr;

  2480.         return;

  2481.     }

  2482. 

  2483. #if 0 //def CARLA_OS_LINUX

  2484.     const char* const oldPreload(std::getenv("LD_PRELOAD"));

  2485.     ::unsetenv("LD_PRELOAD");

  2486. 

  2487.     if (oldPreload != nullptr)

  2488.         ::setenv("LD_PRELOAD", oldPreload, 1);

  2489. #endif

  2490. 

  2491.     String name(kPlugin->getName());

  2492.     String filename(kPlugin->getFilename());

  2493. 

  2494.     if (name.isEmpty())

  2495.         name = "(none)";

  2496. 

  2497.     if (filename.isEmpty())

  2498.         filename = "\"\"";

  2499. 

  2500.     StringArray arguments;

  2501. 

  2502. #ifndef CARLA_OS_WIN

  2503.     // start with "wine" if needed

  2504.     if (fBinary.endsWith(".exe"))

  2505.         arguments.add("wine");

  2506. #endif

  2507. 

  2508.     // binary

  2509.     arguments.add(fBinary.buffer());

  2510. 

  2511.     // osc-url

  2512.     arguments.add(String(kEngine->getOscServerPathUDP()) + String("/") + String(kPlugin->getId()));

  2513. 

  2514.     // filename

  2515.     arguments.add(filename);

  2516. 

  2517.     // label

  2518.     arguments.add(fLabel.buffer());

  2519. 

  2520.     // ui-title

  2521.     arguments.add(name + String(" (GUI)"));

  2522. 

  2523.     carla_stdout("starting DSSI UI...");

  2524. 

  2525.     if (! fProcess->start(arguments))

  2526.     {

  2527.         carla_stdout("failed!");

  2528.         fProcess = nullptr;

  2529.         return;

  2530.     }

  2531. 

  2532.     if (kPlugin->waitForOscGuiShow())

  2533.     {

  2534.         for (; fProcess->isRunning() && ! shouldThreadExit();)

  2535.             carla_sleep(1);

  2536. 

  2537.         // we only get here if UI was closed or thread asked to exit

  2538.         if (fProcess->isRunning() && shouldThreadExit())

  2539.         {

  2540.             fProcess->waitForProcessToFinish(static_cast<int>(kEngine->getOptions().uiBridgesTimeout));

  2541. 

  2542.             if (fProcess->isRunning())

  2543.             {

  2544.                 carla_stdout("CarlaThreadDSSIUI::run() - UI refused to close, force kill now");

  2545.                 fProcess->kill();

  2546.             }

  2547.             else

  2548.             {

  2549.                 carla_stdout("CarlaThreadDSSIUI::run() - UI auto-closed successfully");

  2550.             }

  2551.         }

  2552.         else if (fProcess->getExitCode() != 0 /*|| fProcess->exitStatus() == QProcess::CrashExit*/)

  2553.             carla_stderr("CarlaThreadDSSIUI::run() - UI crashed while running");

  2554.         else

  2555.             carla_stdout("CarlaThreadDSSIUI::run() - UI closed cleanly");

  2556. 

  2557.         kEngine->callback(CarlaBackend::ENGINE_CALLBACK_UI_STATE_CHANGED, kPlugin->getId(), 0, 0, 0.0f, nullptr);

  2558.     }

  2559.     else

  2560.     {

  2561.         fProcess->kill();

  2562. 

  2563.         carla_stdout("CarlaThreadDSSIUI::run() - GUI timeout");

  2564.         kEngine->callback(CarlaBackend::ENGINE_CALLBACK_UI_STATE_CHANGED, kPlugin->getId(), 0, 0, 0.0f, nullptr);

  2565.     }

  2566. 

  2567.     carla_stdout("DSSI UI finished");

  2568.     fProcess = nullptr;

  2569. }

  2570. 

  2571. // -------------------------------------------------------------------------------------------------------------------

  2572. 

  2573. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init)

  2574. {

  2575.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\", " P_INT64 "})", init.engine, init.filename, init.name, init.label, init.uniqueId);

  2576. 

  2577.     CarlaPluginDSSI* const plugin(new CarlaPluginDSSI(init.engine, init.id));

  2578. 

  2579.     if (! plugin->init(init.filename, init.name, init.label))

  2580.     {

  2581.         delete plugin;

  2582.         return nullptr;

  2583.     }

  2584. 

  2585.     plugin->reload();

  2586. 

  2587.     bool canRun = true;

  2588. 

  2589.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  2590.     {

  2591.         if (! plugin->canRunInRack())

  2592.         {

  2593.             init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  2594.             canRun = false;

  2595.         }

  2596.         else if (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0)

  2597.         {

  2598.             init.engine->setLastError("Carla's rack mode cannot work with plugins that have CV ports, sorry!");

  2599.             canRun = false;

  2600.         }

  2601.     }

  2602.     else if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_PATCHBAY && (plugin->getCVInCount() > 0 || plugin->getCVInCount() > 0))

  2603.     {

  2604.         init.engine->setLastError("CV ports in patchbay mode is still TODO");

  2605.         canRun = false;

  2606.     }

  2607. 

  2608.     if (! canRun)

  2609.     {

  2610.         delete plugin;

  2611.         return nullptr;

  2612.     }

  2613. 

  2614.     return plugin;

  2615. }

  2616. 

  2617. // -------------------------------------------------------------------------------------------------------------------

  2618. 

  2619. CARLA_BACKEND_END_NAMESPACE